A214494 - cp's OEIS frontend

A214494 Triangle read by rows ; T(n,k) = C(n,k) - 2*C(n,k-1) where C(n,k) is a binomial coefficient .

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	1
10	4
11	3
12	1
13	5
14	7
15	1
16	6
17	12
18	1
19	7
20	18
21	12
22	1
23	8
24	25
25	30
26	1
27	9
28	33
29	55
30	1
31	10
32	49
33	88
34	55
35	1
36	11
37	59
38	137
39	143
40	1
41	12
42	70
43	196
44	280
45	1
46	13
47	82
48	266
49	476
50	280
51	1
52	14
53	95
54	358
55	742
56	756

[1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 4, 3, 1, 5, 7, 1, 6, 12, 1, 7, 18, 12, 1, 8, 25, 30, 1, 9, 33, 55, 1, 10, 49, 88, 55, 1, 11, 59, 137, 143, 1, 12, 70, 196, 280, 1, 13, 82, 266, 476, 280, 1, 14, 95, 358, 742, 756]

cp's OEIS Frontend

A214494 Triangle read by rows ; T(n,k) = C(n,k) - 2*C(n,k-1) where C(n,k) is a binomial coefficient .

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	1
10	4
11	3
12	1
13	5
14	7
15	1
16	6
17	12
18	1
19	7
20	18
21	12
22	1
23	8
24	25
25	30
26	1
27	9
28	33
29	55
30	1
31	10
32	49
33	88
34	55
35	1
36	11
37	59
38	137
39	143
40	1
41	12
42	70
43	196
44	280
45	1
46	13
47	82
48	266
49	476
50	280
51	1
52	14
53	95
54	358
55	742
56	756

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	1
10	4
11	3
12	1
13	5
14	7
15	1
16	6
17	12
18	1
19	7
20	18
21	12
22	1
23	8
24	25
25	30
26	1
27	9
28	33
29	55
30	1
31	10
32	49
33	88
34	55
35	1
36	11
37	59
38	137
39	143
40	1
41	12
42	70
43	196
44	280
45	1
46	13
47	82
48	266
49	476
50	280
51	1
52	14
53	95
54	358
55	742
56	756

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	1
10	4
11	3
12	1
13	5
14	7
15	1
16	6
17	12
18	1
19	7
20	18
21	12
22	1
23	8
24	25
25	30
26	1
27	9
28	33
29	55
30	1
31	10
32	49
33	88
34	55
35	1
36	11
37	59
38	137
39	143
40	1
41	12
42	70
43	196
44	280
45	1
46	13
47	82
48	266
49	476
50	280
51	1
52	14
53	95
54	358
55	742
56	756